Welcome to Defender Canada! 
Tank Monitors
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SCAD TM1 Tank Monitor with External Sensor Strip - 10040
$273.60 -
SCAD TM2 Tank Monitor for Two Tanks - 10041
$222.50 -
SCAD Technologies External Tape-On Tank Sensor - 10022
$89.64 -
Maretron NMEA 2000 Tank Level Monitor - TLM100-01
$318.86 -
Dometic DTM04 TankWatch 4-Level Tank Monitor System
$524.76 -
Raritan Holding Tank Monitor - 1510012
$739.34 -
Groco Tank Level Sensor - 08-0004-02
$355.36 -
Dometic Multi-Level Tank Monitor System
$495.52 -
Veratron VDO Fresh Water Level Sender - 226-828-001-001K
$562.98 -
Dometic DTM01 Holding Tank Monitor - 313002311
$229.80 -
Raritan Tank Sensor - Stick-On Style - STCTSA
$101.32 -
SCAD Technologies Internal Tank Sensor - 10021
$107.16 -
Blue Sea Systems M2 OLED Digital Tank Monitor - 1839
$403.54 -
Maretron Tank Level NMEA 2000 Adapter - TLA100-01
$372.88 -
LIST Single-Level Waste Tank Alarm - 3/4 Alert - TM-132111
$223.98 -
19% offLIST 3-Level Waste Tank Monitor - TM-332111
$346.62$277.42 -
Vetus Universal Tank Float Sensor
$228.34 - $336.38 -
Blue Sea Mini OLED Tank Meter
$69.20 - $70.66 -
Maretron Tank Level Sender - TLM150-01
$365.58 -
Raritan Tank Sensor - Float Style - STCFL
$156.80 -
LIST 3-Level Water Tank Monitor - TM-331111
$346.62 -
Maretron SAE 5-Bolt Pattern Focus Tube - TFTDBE-5H
$105.72 -
Raritan Tank Sensor Module Kit - 15101
$181.62 -
Maretron TFT-5H-Focus Tube Kit - TFT-5H
$76.52 -
Veratron Level Sensor Single Station with Seal Kit - 226-801-015-001G
$99.13 -
SCAD Technologies Adapter Plate - 10029
$60.44 -
Raritan TankAssure Control Panel with Sensor - 15600
$860.55 -
Raritan Holding Tank Monitor Indicator Panel - 1520012
$396.24 -
Victron Energy GX Tank 140 System Monitoring - BPP920140100
$144.57 -
Vetus Fuel Tank Float Sensor - FSENSOR
$76.50 -
56% offOceanic Systems Deck-Mounted Water Gauge - 5250-W
$475.08$205.00 -
Maretron NMEA 2000 Tank Temperature Immersion Probe - TP-IP-1
$177.24 -
Vetus Ultrasonic Fluid Level Sensor
$257.54 - $269.22 -
34% offLIST Single-Level Water Tank Alarm - 1/4 Alert - TM-131111
$209.38$136.30 -
53% offOceanic Systems 4-20mA Tank Level Adaptor - 4291
$394.78$183.10 -
56% offOceanic Systems Submersible Hydrostatic Sensor
$475.08$205.00 -
Raritan Tank Monitor Indicator Panel Wire Harness - 152WH
$51.68 -
Victron Energy VE.Can Resistive Tank Sender Adapter - BPP900600100
$484.61 -
Veratron OceanLink Fresh Water Gauge - 52 mm (2 1/16")
$93.89 -
Veratron Fresh Water Level Sensor with Sealing Kit #370
$235.79 - $578.76 -
Veratron Waste Water Level Sensor with Sealing Kit #930
$376.39 - $719.36 -
54% offOceanic Systems Panel-Mounted Holding Tank Pumpout Gauge - 3350-HTPO
$402.08$183.10 -
Raritan TankAssure Sensor Kit - 15610
$521.82 -
Raritan TankAssure NMEA2000 Adapter - 15630
$571.44
About Tank Monitors
Tank Monitors
Monitoring water tank levels can be tricky and gauges are essential on boats. Some tanks must stay full while other tanks need to be bled as the gauge creeps up. A wide variety of single level gauges available at Defender are designed to monitor water tank levels in individual tanks. LED panel marine tank monitor systems and sensors do the same thing in multiples. Monitors basically offer one base for keeping an eye on all your tanks at the flip of a switch - even at night!